Use Scientific Notation to Perform the Following Operations $\left( 3.3 \times 10 ^ { 2 } \right) + \left( 2.4 \times 10 ^ { 1 } \right)$

Multiple Choice

Use scientific notation to perform the following operations. Leave your answer in scientific notation.
- $\left( 3.3 \times 10 ^ { 2 } \right) + \left( 2.4 \times 10 ^ { 1 } \right)$

A) $3.54 \times 10 ^ { 2 }$
B) $3.54 \times 10 ^ { 3 }$
C) $5.7 \times 10 ^ { 2 }$
D) $5.7 \times 10 ^ { 1 }$